HTTP/1A.1B 200 ok
Content-type: application/javascript
Connection: close
Transfer-Encoding: chunked
Yet-another-header: foo
Content-length: 194

GIF87a=1;try { document.getElementById('broken-proto:HTTP/1A.1B;chunked;do_clen').style.backgroundColor = '#e30e2c'; } catch(e) {} ping_back('/ping?BAD:broken-proto:HTTP/1A.1B;chunked;do_clen');